Pliysarum. 289 



Edinburgh) ; France ; Germany ; Italy ; Hungary ; Denmark ; 

 S. Africa ; Australia. 



About 1*5 mm. high ; stem, when perfect, dingy brown, slightly 

 attenuated upwards; the sessile and irregular forms are dis- 

 tinguished from Pliysarum cinereum by the dense, irregular 

 capillitium having most of the angles flattened and rarely 

 containing lime. 



Var. molascens, Host. Sporangium subglobose or compressed, 

 wall thin, iridescent, with violet or reddish tints, with very few 

 small, innate patches of lime, or these may be entirely absent ; 

 stem short or equal to sporangium, stout, expanding at the 

 base into a small hypothallus, yellowish, darker below, strongly 

 wrinkled longitudinally ; capillitium and spores as in the type. 



Pliysarum Icucophaeum, /3. molascens, Rost., Mon., p. 113; 

 Cke., Myx. Brit., p. 15. 



On moss. Epping Forest. 



(Rostafmski's Synonyms.) 



Sjjhacrocarpus albus, Bull., p. 136, var. 3, 4 (1791). 



Trichia filamentosa, Trent.', p. 227 (1797). 



Physarum confluens, Link, Diss., ii., 42 (1809). 



Pliysarum connexum, Link, Diss., ii., 42 (1809). 



Physarum hypnorum, Link, Diss., ii., 42 (1809). 



Physarum albopunctatum, Link, Herb. 



Physarum davus, Ehr., Herb. 



Physarum conglobatum, Ditm., t. 40 (1817). 



Physarum leucophaeum, Fr., Sym. Gast., p. 24; Syst. Myc., 



iii., 132 (1818); Cooke, Fung. Brit., ii., n. 519. 

 Didymium melanopus, j3. davus, Wallr., non Fries (.1833). 

 Didymium terrestre, Fr., in Weinm. (1836). 

 Physarum albipes, De Bary, not Link (1859). 

 Physarum striatum, Fckl., Sym. Myc., 342 (1869). 

 Didymium hemisphericum, Fckl., Sym. Myc., 341 (1869). 



Physarum granulatum, Balf. fil. (figs. 68 70). ^vt<u\s. v.O 



Sporangia stipitate, globose, sometimes slightly flattened 

 below, grey, with small innate granules of lime, and having in 



